Results 41 to 50 of about 84,612 (251)

Fabrication of three-dimensional microdisk resonators in calcium fluoride by femtosecond laser micromachining

open access: yes, 2014
We report on fabrication of on-chip calcium fluoride (CaF2) microdisk resonators using water-assisted femtosecond laser micromachining. Focused ion beam (FIB) milling is used to create ultra-smooth sidewalls.
Cheng, Ya   +7 more
core   +1 more source

Quantum interferometry with three-dimensional geometry [PDF]

open access: yes, 2012
Quantum interferometry uses quantum resources to improve phase estimation with respect to classical methods. Here we propose and theoretically investigate a new quantum interferometric scheme based on three-dimensional waveguide devices.
A Crespi   +41 more
core   +2 more sources

Femtosecond laser micromachining of a single-crystal superalloy

open access: yesScripta Materialia, 2004
Investigations on femtosecond laser micromachining of single crystal superalloys with and without plasma-sprayed thermal barrier coatings were conducted under laser fluences ranging from 0.1 J/cm 2 up to 160 J/cm 2 . Micromachining was carried out in air using a titanium:sapphire laser system (O = 780 nm) operating at a repetition rate of 1 kHz and ...
Q. Feng   +5 more
openaire   +1 more source

High performance laser induced plasma assisted ablation by GHz burst mode femtosecond pulses

open access: yesOpto-Electronic Advances
High performance laser micromachining based on the combination of GHz burst mode femtosecond pulses irradiation and laser induced plasma assisted ablation can open a new avenue for high-quality and high-efficiency micromachining of single crystalline ...
Jingbo Yin, Yulong Zhao, Minghui Hong
doaj   +1 more source

Towards High-Precision Optical Components Fabrication via Femtosecond Laser Micromachining [PDF]

open access: yesEPJ Web of Conferences
Femtosecond laser micromachining (FLM) has emerged as a powerful technique for the precise fabrication of optical components, enabling high-resolution structuring in transparent materials such as fused silica and borosilicate glass.
Ciceri Andrea   +8 more
doaj   +1 more source

An integrated fluorescence activated cell sorter fabricated by femtosecond laser micromachining

open access: yesMATEC Web of Conferences, 2013
We present here a fully integrated fluorescence activated cell sorter (FACS), able to perform analysis at single cell level. This optofluidic device is obtained on a fused silica substrate with the use of femtosecond laser micromachining.
Paié P.   +8 more
doaj   +1 more source

Fabrication of a microresonator-fiber assembly maintaining a high-quality factor by CO2 laser welding

open access: yes, 2015
We demonstrate fabrication of a microtoroid resonator of a high-quality (high-Q) factor using femtosecond laser three-dimensional (3D) micromachining. A fiber taper is reliably assembled to the microtoroid using CO2 laser welding.
Cheng, Ya   +6 more
core   +1 more source

All-laser-micromachining of ridge waveguides in LiNbO3 crystal for mid-infrared band applications

open access: yesScientific Reports, 2017
The femtosecond laser micromachining of transparent optical materials offers a powerful and feasible solution to fabricate versatile photonic components towards diverse applications.
Lingqi Li   +6 more
doaj   +1 more source

Miniature Fabry-Perot Cavity Based on Fiber Bragg Gratings Fabricated by Fs Laser Micromachining Technique

open access: yesNanomaterials, 2021
Fabry-Perot cavity (FPC) based on Fiber Bragg gratings (FBGs) is an excellent candidate for fiber sensing and high-precision measurement. The advancement of the femtosecond laser micromachining technique provides more choices for the fabrication of FBGs ...
Luohao Lei   +7 more
doaj   +1 more source

Dual regimes of ion migration in high repetition rate femtosecond laser inscribed waveguides [PDF]

open access: yes, 2015
Ion migration in high repetition rate femtosecond laser inscribed waveguides is currently being reported in different optical glasses. For the first time we discuss and experimentally demonstrate the presence of two regimes of ion migration found in ...
del Hoyo, J.   +6 more
core   +3 more sources

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